Sensitive recognition of cyanide through supramolecularly complexed new calix[4]arenes

被引:14
作者
Chawla, Har Mohindra [1 ]
Shukla, Richa [1 ]
Goel, Preeti [1 ]
机构
[1] Indian Inst Technol Delhi, Dept Chem, New Delhi 110016, India
关键词
FLUORESCENT SENSOR; CHEMOSENSOR; ENSEMBLE; CALIXARENES; DESIGN; PROBE; IONS;
D O I
10.1039/c4nj00065j
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Two new calix[4]arene based fluorescence sensors (L1 and L2) have been synthesized and characterized. L1 was found to selectively quench fluorescence intensity upon addition of Cu2+ ions through host-guest complexation and display "on-off'' behavior while L2 was not that efficient. The in situ generated L1.Cu2+ complex could further recognize CN- from the anionic broth with a distinct "off-on'' behavior in the fluorescence titration.
引用
收藏
页码:5264 / 5267
页数:4
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